Smokers pipe

ABSTRACT

A smoking pipe having a bowl and stem; a smoke duct extending through the stem to the mouthpiece having a spiral spring therein providing a plurality of spaced projections extending from the duct walls to dissipate the heat of the smoke, flowing to the mouthpiece, collecting chambers being provided between the projections adjacent the duct wall. The downstream end of the stem terminates in a bowl supporting member having a chamber forming portion adapted to removably support a bowl thereon, the chamber having well having a filter therein and providing a trap for condensate. A portion of the stem is upset and extends upwardly into the well providing a dam to prevent the condensate from flowing from the trap into the stem duct and for retaining the spring in the stem duct.

United States Patent [1 1 Fassbender Nov. 27, 1973 [54] SMOKERS PIPE 1,231,876 7/1917 Goodall 131/209 X Inventor: Frederick A. Fassbender 2,061,786 11/1936 Vollmann 131/214 X Essex Fells, N.J. Przmary Exammer loseph S. Reich Assigneer Frank & 1116-, Att0rneyEric Y. Munson et al.

New York, NY.

[22] Filed: June 27, 1972 [57] ABSTRACT [21] Appl. No.: 266,669 A smoking pipe having a bowl and stem; a smoke duct extending through the stem to the mouthpiece having a spiral spring therein providing a plurality of spaced [52] US. Cl 131/201, 131/209, 131/214, projections extending from the duct walls to dissipate 5 1 1 Int Cl 1: the heat of the smoke, flowing to the mouthpiece, col- I I n I I I 1 u e u l l 3 s e I l l I u l I l n u e I [58] Field of Search 131/205, 206, 209, tions adjacent the duct wan The downstream end of 131/214 225 the stem terminates in a bowl supporting member having a chamber forming portion adapted to removably [56] References C'ted support a bowl thereon, the chamber having well hav- UNITED STATES PATENTS ing a filter therein and providing a trap for conden- 1,086,875 2/1914 Wallace 131/205 sate. A portion of the stem is upset and extends up 2,175,040 1939 Thomson 13l/209 X wardly into the well providing a dam to prevent the 3,394,713 7/1968 Thomson 131/210 X condensate from flowing from the trap into the stem 3,195,543 7/1965 Pollock 131/206 x duct and for retaining the Spring in the Stem duct 3,313,30s 4/1967 Grasso 131 225 x I 3,079,927 3/1963 Fassbcnder 131/206 X 4 Claims, 5 Drawing Figures 3,223,091 12/1965 Fassbender.... 131/206 3,662,764 5/1972 Blanco 131/209 3,128,776 4/1964 Bigelow 131/209 X SMOKERS PIPE BACKGROUND OF INVENTION This invention relates to the art of smoking pipes and more particularly to an improved smoking pipe facilitating the dissipation of heat from the smoke flowing to the pipe mouthpipe and providing moisture collecting chambers to minimize the likelihood of any condensed moisture flowing to the mouth of the user.

In providing a smoking pipe, a number of factors come into consideration with a view to producing a pipe which will give the pipe smoker maximum pleasure. Thus it is desirable to cool, filter, and dry the smoke passing from the tobacco containing pipe bowl to the mouth of the smoker. To this end a variety of pipe constructions have been evolved.

Accordingly, a variety of filters have been developed for positioning in the smoke stream through the pipe to filter tobacco particles and tars from the smoke. Additionally, absorbent filters have been employed to provide for moisture and tar elimination from the smoke. Such filters unfortunately rapidly clog up with moisture, tars and particles of tobacco, so that their effectiveness as a filter islost, and as a result of the clogging of the filter, the passage of smoke through the pipe is prevented.

BRIEF DESCRIPTION OF INVENTION It is with the above considerations in mind that the present improved smoking pipe has been evolved providing a pipe in which desired cooling of the smoke is provided, along with separation of tars and other particles, and condensation of moisture, with the material separated from the smoke stream maintained out of the primary path of the smoke stream so as not to interfere with the desired easy draw of the pipe.

It is accordingly among the primary objects of this invention to provide an improved dry and cool smoking pipe.

A further object of the invention is to provide a smoking pipe in which tars and moisture are removed from the smoke stream without interfering with the draw of the pipe.

An additional object of the invention is to provide a smoking pipe in which undesired moisture and tar are removed from the smoke stream in order to make the pipe subject to ready cleaning.

These and other objects of the invention which will become hereafter apparent are achieved by forming a smoking pipe with a tobacco containing pipe bowl. An elongate hollow smoke conducting pipe stem having a smoke conducting duct therethrough is secured to said bowl and a plurality of spaced projections are formed within the stem extending into said duct. The spaces between the projections cooperate with the duct surface from which they extend to form a plurality of collecting chambers for condensate, tars and any other particles separating from the smoke stream in its passage through the duct. A mouthpiece is removably secured to the stem end remote from the bowl.

A feature of the invention resides in the provision of a turbulence producing chamber having projections in the smoke duct of the stem by utilizing a simple conventionally available coil spring with an outer diameter corresponding to the interior diameter of the smoke duct.

Another feature of the invention resides in the formation of the stem with a collecting well member for securement to the pipe bowl, with the intake end of the stem upturned to provide a dam preventing the flow of condensate from the well into the stem.

BRIEF DESCRIPTION OF DRAWINGS The specific details of a preferred embodiment of the invention and how to make and use same will be described in clear, concise and exact terms in conjunction with the accompanying drawings wherein:

FIG. 1 is a perspective view of a pipe made in accordance with the teachings of the invention;

FIG. 2 is an exploded enlarged cross-sectional longitudinal view taken on line 2-2 of FIG. 1; which is offset along its length to show the coil spring used in forming the projection partially in full view and partially in section;

FIG. 3 is a cross-sectional view through the stem on line 33 of FIG. 1;

FIG. 4 is a cross-sectional view showing the joinder of the stem to mouthpiece taken on line 4-4 of FIG. 2; and

FIG. 5 is a fragmentary cross-sectional view on line 5-5 of FIG. 2 showing the relationship between the ceramic filter, well and dam.

DESCRIPTION OF PREFERRED EMBODIMENT Referring now more particularly to the drawings, where like numerals in the various figures are employed to designate like parts, the pipe 10 illustratively shown embodying the inventive concepts is seen to comprise a bowl 12, coupled to a stem 14 and having a mouthpiece l6.

Bowl 12, as best seen in FIG. 2 is formed with a tobacco receiving recess 20, open at the top and contoured to a lower smoke passage 22 at the bottom of the bowl. A smoke chamber 24 is formed beneath the smoke passage 22 by a counterbore. The bowl 12 is formed for selective removal from the stem 14 by providing the bowl 12 at its lower end with a stem-well engaging recess 26 having an annular bushing ring 28 secured in said engaging recess 26 at the bowl bottom. Bushing ring 28 is formed with outwardly flared inner surface 29, such that the internal diameter of bushing ring 28 is greater at the end thereof closer to the smoke chamber 24, than at the end of the ring exposed at the bowl bottom.

As will be understood by those skilled in the art, the pipe bowl 12 may be made of a variety of materials, such as conventionally employed in the manufacture of pipes. Briar wood which lends itself to forming by conventional wood forming techniques is suitable.

The stem 14, though subject to being formed of any conventionally used pipe stern materials as above noted in connection with bowl 12, is formed of aluminum in the form of an elongate bar rectangular in crosssection. Other desired materials and pipe stern shapes may be employed. A smoke conducting duct 30 extends longitudinally through the stem 14. Smoke conducting duct 30 as best seen in FIG. 2 is provided with a plurality of spaced projections 32 extending from the walls of the duct into the flow path of smoke through the duct. Collection chambers 33 are formed in the spaces between projections 32 adjacent the side wall of duct 30 and out of the primery smoke path through duct 30.

The projections 32 extending from the walls of duct 30 are most effectively provided, in accordance with the illustrated embodiment by forming duct 30 of a circular cross-section, and arranging a coil spring with an outer diameter substantially equal to the diameter of the duct 30 within the duct 30. The thickness of the wire forming the coil spring is preferably less than half the diameter of the duct to leave a free unobstructed path through the duct.

In manufacture of the illustrated preferred embodiment, the spring providing projections 32 is inserted into the duct 30 and the end of the stem remote from bowl 12 is internally upset to provide a spring retaining internal flange 34. The bowl end of the stem is upset to provide a dam 36 which blocks the flow of any liquid from the well member 40 and retains the spring in the stem duct 30.

Well member 40, as seen to the lower right in FIG. 2, provides a connection between the stem 14 and the bowl 12. Well member 40 is shown in the illustrated embodiment as formed of aluminum. However, the well 40 may be formed of any suitable pipe forming materials as above discussed The well member 40 is formed integral with stem 14 and is provided with a hollow interior having a lower surface 42 beneath the level of the top of dam 36, so that any moisture collecting in the bottom interior of the well member will be retained against flow through the stem. An annular member 44 is formed at the upper end of the well member 40 of an external diameter slightly less than the internal diameter at the bottom of bushing 28. Groove 46 is undercut in member 44 and an O-ring of resilient material is seated in the groove 46. The thickness of the O-ring is such as to seal any space between the member 44 and bowl bushing 28 when the bowl is seated thereon.

A ceramic filter 45 of the type shown in applicants prior US. Pat. No. 3,223,091 is positioned in well member 40. The lower disc 43 of filter 45 is cut away at 47 to provide a free moisture collecting chamber on the well side of dam 36.

Mouthpiece 50 is removably secured to the free end of stem 14 by conventional pipe forming techniques in which a nipple portion 52 on stem 14 is press fit into an opening in the mouthpiece.

OPERATION In use the aforedescribed pipe components after fabrication as described are assembled into the pipe illustrated in FIG. 1.

Tobacco is insertedinto bowl l2 and smoking may commence. The smoke in passing from tabacco recess lent baffling as a result of the projections 32 extending into the smoke flow path from the side-walls of duct 30. The resulting turbulence delays the flow of smoke through the stem and increases the cooling of the smoke as a result of its increased time of contact with the heat dissipating projections and stem duct surfaces. Any moisture or solid material not filtered out by filter 45 is retained in chambers 33 between the projections 32 out of the unobstructed portion of duct 30, leaving a relatively free smoke path through the stem, and the smoke passing through to mouthpiece 50 is relatively cool, dry and particle free.

Cleaning of the illustrated embodiment of the pipe to remove any moisture or solid material filtered from the smoke is accomplished by disassembling the bowl and mouthpiece from the stem-well assembly, replacing or cleaning the ceramic filter, and passing a pipe cleaner through the stem duct.

It is thus seen that a simple pipe structure has been provided in which the collection of moisture and solid material from the smoke stream is implemented, without interfering with desired flow of smoke through the pipe.

The above disclosure has been given by way of illustration and elucidation and not by way of limitation and it is desired to protect all embodiments of the herein disclosed inventive concept within the scope of the appended claims.

What is claimed is:

1. A smoking pipe comprising: a tobacco retaining bowl; an elongate pipe stem having one end secured to said bowl in smoke transfering relationship thereto, said stem having a smoke conducting duct extending therethrough; a plurality of spaced projections extending from the walls of the duct into the flow path of smoke therethrough; with collecting chambers formed between said projections adjacent the duct wall; and a mouthpiece on the stem end remote from said bowl; said stem being connected to said bowl by a well member engaging said bowl at the bottom thereof, said stem extending through a wall of said well member and provided with an upturned intake end relative to the bottom of the bowl to dam the flow of any condensate from said well into said stem.

2. A smoking pipe as in claim 1 in which said duct is circular in cross-section and said projections are formed by a coil spring having an outer diameter substantially equal to the diameter of said duct, said coil spring positioned in said duct.

3. A smoking pipe as in claim 2, in which said stem is provided with a flange at the mouthpiece end thereof and with a dam at the other end between which flange and dam said coil spring is retained in said duct.

4. A smoking pipe as in claim 1 in which a ceramic filter is arranged within said well, said filter dimensioned to substantially fill said well save for a space adjacent said dam to provide a free moisture collecting chamber in said well.

t i i t 

1. A smoking pipe comprising: a tobacco retaining bowl; an elongate pipe stem having one end secured to said bowl in smoke transfering relationship thereto, said stem having a smoke conducting duct extending therethrough; a plurality of spaced projections extending from the walls of the duct into the flow path of smoke therethrough; with collecting chambers formed between said projections adjacent the duct wall; and a mouthpiece on the stem end remote from said bowl; said stem being connected to said bowl by a well member engaging said bowl at the bottom thereof, said stem extending through a wall of said well member and provided with an upturned intake end relative to the bottom of the bowl to dam the flow of any condensate from said well into said stem.
 2. A smoking pipe as in claim 1 in which said duct is circular in cross-section and said projections are formed by a coil spring having an outer diameter substantially equal to the diameter of said duct, said coil spring positioned in said duct.
 3. A smoking pipe as in claim 2, in which said stem is provided with a flange at the mouthpiece end thereof and with a dam at the other end between which flange and dam said coil spring is retained in said duct.
 4. A smoking pipe as in claim 1 in which a ceramic filter is arranged within said well, said filter dimensioned to substantially fill said well save for a space adjacent said dam to provide a free moisture collecting chamber in said well. 